package com.gaofeng.demo15;

public class TestDemo {
    public static void main(String[] args) {
        int[] arr = {1,2,3,4,5};
        String s = ArrayUtil.printArray(arr);
        System.out.println(s);


        double[] arr2 = {1.2,3.4,5.6};
        double average = ArrayUtil.getAverage(arr2);
        System.out.println(average);


    }
}
